EL-AGAILI, M. M.; EL-MAIHOUB, A. A. Synthesis and Spectroscopic Investigation of New Complexes of [8– (2– carboxyphenylazo) –6– formyl –7– hydroxy –5– methoxy –2– methylchromone with La (III) and Th (IV)]. Al-Mukhtar Journal of Sciences, Al Bayda, Libya, v. 7, n. 1, p. 90–96, 2000. DOI: 10.54172/mjsc.v7i1.415. Disponível em: https://omu.edu.ly/journals/index.php/mjsc/article/view/415. Acesso em: 8 may. 2024.